package day12HomeWork;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;

public class SortInteger {
    public static void main(String[] args) {
        Random rand = new Random();
        List<Integer>list = new ArrayList<>();
        for (int i = 0; i <10 ; i++) {
           list.add(rand.nextInt(100));
        }
        System.out.println("list原始数据:"+list);

        Collections.sort(list);
        System.out.println("升序排列之后："+list);
        System.out.println("第1个元素为："+list.get(0));

        Collections.reverse(list);
        System.out.println("降序排列之后："+list);
        System.out.println("第一个元素为："+list.get(0));

    }
}
